class SocketPlugin {
       constructor (param) {
         this.websocket = null
         this.isConnect = false
         this.timeoutNum = null
         this.time = null
         this.isActivelyClose = false
         this.param = param
       }
      
    
      connect () {
        this.websocket = new WebSocket(this.param.url)
        this.initSocket(this.param)
      }
      
      initSocket (param) {
        this.isActivelyClose = false
     
    
        this.websocket.onclose = e => {
          console.log('websocket连接关闭~' + this.param.url)
          this.isConnect = false
          // 如果手动关闭则不进行重连
          if (!this.isActivelyClose) {
            this.reconnectSocket(param)
          }
        }
     
    
        this.websocket.onerror = e => {
          console.log('websocket发生异常~' + this.param.url + e)
          this.reconnectSocket(param)
        }
     
    
        this.websocket.onopen = () => {
        console.log('websocket已连接~ ' + this.param.url)
          this.isConnect = true
          if (param.hasOwnProperty('msg')) {
            this.send(param.msg || '')
          }
        }
     
    
        this.websocket.onmessage = e => {
          param.callback(JSON.parse(e.data))
        }
      }
     
    
      reconnectSocket (param) {
        if (this.isConnect === true) {
          return false
        }
        console.log('websocket 重新连接~ ')
        this.isConnect = true
        this.timeoutNum && clearTimeout(this.timeoutNum)
        this.timeoutNum = setTimeout(() => {
          this.connect(param)
          this.isConnect = false
        }, 1000)
      }
     
    
      /**
       * // websocket连接状态下才能进行send
       * @param {*} msg
       * 向服务send的消息
       */
      send (msg) {
        this.websocket.send(JSON.stringify(msg))
      }
     
    
      close () {
        this.isActivelyClose = true
        if (this.websocket) {
          this.websocket.close()
        }
      }
    }
     
    
    export default SocketPlugin